Abstract
BackgroundMonacha obstructa is one of the most abundant gastropod of Egyptian farms. It is a destructive land snail as they cause great damage to vegetables and crops. The present study aimed to control snails by ultraviolet radiation.Materials and methodsSnails under study were subjected to the same dose of UV-A radiation for two different periods. The source of radiation was UV-fluorescent lamps, UV-A 366 nm. Small pieces of mantle edge, foot, digestive gland, and intestine of treated and untreated snails were taken and prepared for histological examination by light microscope. While small pieces of mantle edge and foot only were prepared for scanning electron microscopic examination.ResultsHistopathological changes in the mantle, foot, digestive gland, and intestine of treated snails were studied. The changes included destruction and disorganization of many cell types. UV-A radiation affected the fitness of the snails; they became less active. The changes in different organs will lead to alteration in their functions.ConclusionsUV-A has a destructive effect on different organs of the snails under study. This effect will lead to the control of this snail (Monacha obstructa).
Highlights
Monacha obstructa is one of the most abundant gastropod of Egyptian farms
The present study aims to study the use of Solar radiation of wavelength bands 400–320 nm (UV-A) radiation to control the destructive snail Monacha obstructa
Many histological changes were recorded in mantle edge, foot, digestive gland, and intestine
Summary
Monacha obstructa is one of the most abundant gastropod of Egyptian farms. It is a destructive land snail as they cause great damage to vegetables and crops. UV-A radiation is not completely absorbed by ozone. The effect of ultraviolet radiation (UV) is important to various aquatic and terrestrial organisms. The direct effect is the alteration, which occurs in the Mohammad (2016) reported that UV-A radiation induced biochemical, histological, and morphological alteration of Simocephaus vetulus (zooplankton). These changes depended on the period of exposure to radiation
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